The Acts of the Apostles recounts how they were infused with the Holy Spirit fifty days after Easter, an event celebrated by the feast of Pentecost. In this plaque, the use of gilding and of enamel over metal foil creates a shimmery effect appropriate to this mystical scene. Along with others of the same dimensions— including three in the main building of the Metropolitan Museum—it once decorated an imposing church furnishing, such as an altar, candlestick, or large cross.